Reznor UDA Series - Default Chapter; Table of Contents

2
I-UD&APD (04-19) PN195673R33
TABLE OF CONTENTS
GENERAL INFORMATION ..................................................................4
References .............................................................................4
Important Safety Information................................................................4
Certification .............................................................................5
Warranty ...............................................................................5
Installation Codes ........................................................................5
Special installations (aircraft hangars/repair garages/parking garages) ............................5
Massachusetts requirement ..............................................................5
UNIT HEATER LOCATION ..................................................................6
Heater Throw............................................................................6
Mounting Height Requirements..............................................................7
Hazards of Chlorine.......................................................................8
Clearances and Dimensions ................................................................8
Weights ................................................................................10
Combustion Air Requirements ..............................................................11
Combustion air—models UDAS and UDBS ..................................................11
Combustion air—models APD, UDAP, and UDBP.............................................11
Acoustical Considerations..................................................................12
UNCRATING, INSPECTING, AND PREPARATION FOR INSTALLATION ..............................12
Uncrating...............................................................................12
Inspecting ..............................................................................12
Preparation for Installation .................................................................12
Shipped-separate options ...............................................................12
Field-removal of heat exchanger tube support—unit sizes 030–125 (optional) .......................12
HEATER INSTALLATION ...................................................................12
Two- or Four-Point Suspension..............................................................12
Option Packages.........................................................................12
Downturn nozzle kits (option CD2, CD3, or CD4) .............................................13
Hanger kits (option CK8, CK10, or CK22) ...................................................13
Lifting and Suspension of Heater ............................................................14
Heater Suspension Using Field-Supplied Threaded Rods .........................................14
PIPING INSTALLATION.....................................................................15
Gas Supply Pressure .....................................................................15
Sizing Gas Supply Line ....................................................................15
Gas Connections.........................................................................16
WIRING INSTALLATION ....................................................................16
Supply Wiring ...........................................................................17
Supply wiring connections ...............................................................17
Supply wiring connections at circuit board ...................................................17
Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Wiring Diagrams .........................................................................18